Originally Posted by Spk64
If you are referring to the day night shades popular in older coaches. I removed ours and soaked them in Oxyclean then rinsed well carefully laid them out to dry.
Removed a lot of dirt doing this.
We did the exact procedure on our old Winnie. Removed them all, light vacuum first, Oxyclean in a spray bottle and a very soft brush. Picked a very nice warm day and rigged up a 2x4x8 to hang them on. I used a clean garden sprayer with hot fresh water to gently rinse them off. You wouldn't believe the crud that came out of them.